SPRING, Texas — Neighbors reacted with shock after six people, four of them children, were fatally shot in a Houston suburb Wednesday in what police described as a domestic dispute.

Neighbors said they were making dinner when they heard gunshots and then ambulance after ambulance rush to their street.

"It's really sad because they were my best friends since first grade," said Cassidy Ramirez.

A 15-year-old girl who was wounded in the shooting identified the suspected gunman and warned deputies that he planned to kill more people at another relative's home. She directed deputies to the alleged shooter's location, said Assistant Chief Deputy Constable Mark Herman of the Harris County Precinct 4 Constable's Office.

A standoff ensued when deputies cornered the man in a cul-de-sac in a nearby neighborhood. He surrendered after three hours.

The Harris County Sheriff's Office said in a written statement that precinct deputy constables were called to the house in Spring, a suburb 20 miles north of Houston, about 6 p.m. Wednesday and found two adults and three children dead. Deputies found the teen and another child alive, but the child later died at a hospital.

"It appears this stems from a domestic issue with a breakup in the family from what our witness has told us," Herman said.

Authorities did not release identities of the victims, which ranged in age from 5 to 40, and did not say how they might be related to each other or the suspect.

The suspected gunman had led a parade of almost two dozen deputy constables' patrol cars to a cul-de-sac shortly before 7 p.m. There, the suspect's boxed-in vehicle remained for hours.

Finally, after hours of waiting and negotiations, the man emerged from his car, raised his hands and sank to his knees as deputies placed him under arrest.Sheriff's Sgt. Thomas Gilliland described the man as in his 30s with a beard "and cool as a cucumber." He said that when he and other officers approached, the man was "just sitting in his car looking out at us."

Danna Stevens, 75, and her husband, Texas Stevens, live four doors down from the home where the shooting happened in. Danna Stevens said she did not know her neighbors well and that they had moved into the subdivision about a year ago.